Means for imparting gyratory and other motions to flexible tubular members



l l 3 wn n Y., l v.. E E i 2 A ,Cm w m ,M L, 2 M w... D! 8 E f.. E o wMOTIONS TO FLEXIBLE TUBULAR MEMBERS MEANS FOR IMPARTING GYRATORY ANDOTHER Aug.l v7, 1945 the strand being so bent Patented Aug. 7, 1945 FORIMPABTING GYRATOBY ANDl OTHER MOTIONS T0 FLEXIBLE TUBULAB MEMBERSBenjamin mman, steam, N. J. Appunti@ May zo, 1944, serial No. 536,56*

(ci. zes-e9) This invention relates ing motion to flexible, consists inthe constructions, arrangements and combinations 'herein described andclaimed.

It is the cardinal object or the invention to provide a means in whichafiexible discharge hose member is employed, having `a rigid member to ameans 'for imparttubular members, and it interiorly thereof suitablycurved so as to impar-t gyratory movements to the hose under applicationof :duid pressure within .the hose. I

More specifically, it is an object of Ithe invention to provide a lawnsprinkler in which a strand is' embodied in the flexible dischargemember, or curved as to provide predetermined gyratory movements ofthe`discharge member.

Additional objects, advantages and features of invention will beapparent trom the following description, considered in conjunction withthe accompanying drawing, in which -Figure 1 is a vertical sectionpartly tion, illustrating the invention.

Figure 2 is a side elevation of a modied form of the strand member whichmay be employed in the hose.l

Figure 3 is a further ber.

Figure 4 is an elevation, partly in section, of a further form of thedevice.

Figure 5 is a cross section on .the line 5-5 of Figure 1.

In the present instance, I have scribed my invention as applied to alawn sprinkler, but I do not limit myself to this speciiic use.vsincethe principle here shown and described may be employed in any situationwhere a predetermined movement of a uid conducting hose is desired.

rIhere isiliustrated a base member I0 including supporting feet Il, thebase havin integrally formed therewith a'water inlet I2 and a verticallyin elevaform of the strand memas tory disposed outlet I3. The abovestructure is com- 4 mon in many lawn sprinklers and forms no specincfeatures of my invention, since obviously, other types of sprinklerbases may be employed.

The outlet I3 is interiorly threaded to receive a nipple I4, the upperend oi which is threaded to receive an adapter I5, the latter havingsecurely xed thereto a exible hose IB. The hose I6. may be of anyapproved or desired length, trom several inches to several reet, thisdepending upon the gyrations ofthe exible hose, that it is desired toobtain.

Upon the terminal end of .the hose I8 an adjustable restrictor I1 ismounted for regulating .the now or spray of duid or water, Theserestrictors are well known in the art and a detailed disclosure is notbelieved essential to obtain an understanding 4of the invention.l

Threaded through the adapter I6 and partially through the hose I6 thereis a rigid strand Ii, the lower end of which is ilattened, as at I9,providing a diameter greater than the bore 20 of the adapter, thuspreventing the"strand I8 passing outwardly through the hose under actionof fluid pressure. vThe strand I8 is provided with i any suitable numberof -bends or convolutions 2|A and is of a length stopping short of therestrictor I1. It will be noted that some of the convolu- -tions orbendsl contact the interior of the hose.

In use, in the case'of a lawn sprinkler, water is admitted to the inletI2 by means of a hose 22, passing through the outlet I3, nipple Il andadapter I5, and into the exible hose I6. The water being under pressure,the hose will be caused to partake or gyrations about the axis of thestrand I8, and since the strand is formed with predetermined bends orconvolutions, movements of the hose will' accord thereto.

In Figure 2, the strand I8 is formed. as a tapering member, with a pairof helices 23 of left hand turns, and or different diameters, while inFigure 3, the helices 23' and 23" are reversely bent from that shown inFigure 2, and also, the helix 23" is of greater diameter than the helix23'.

In Figure 4, a simple helical convolution 2l is embodied in .the strand,the lower end of which is anchored upon a transverse pin 25, eliminatingthe need for flattening the strand as shown in the previously describedforms.

It will be readily' understood that various gyramovements can beimparted to the hose by merely forming the strand with the desiredbends.

and where the short type of sprinkler shown iny Figure 4 is employed, avery rapid gyration is produced, discharging water in a restricted area;while using a longer type hose and appropriate strand, a wider spread ofwater will be eected.

While I have shown and described certain preferred forms of the device,this is by way ot illustration only, and I consider as my own all suchmodications in construction as fairly tall within the scope of theappended claim.

A flexible hose one end of which is adapted to be fixedly attached .to awater supply; a water exit nozzle carried by the free end of saidilexible hose; and a rigid convolute rod positioned within said exiblehose and extending therein from the I lower end of said iiexible hose toa point near said v hose will impart gyratory movement to said hose.

BENJAMIN FORMAN.

